MetricMaster

MetricMaster is a measurement unit conversion calculator containing 2,000
metric/S.I., imperial, U.S., and other units in its database, most to 14
significant digit precision. New units can be added and unwanted ones
removed. Supports ft/in/fractions, different number formats including
scientific notation, and complete control of significant digits.
MetricMaster can also convert currencies, clock times, and many physical
constants. On-line info is available on the history and development of
modern measurement systems. 600 of the units have full definitions. For OS
8, 9, and X.

Path: /www/exparrot/files.tidbits.com/info-mac/sci/metric-master.hqx